Climbing rose plant named ‘POULyc004’

ABSTRACT

A new climbing garden rose plant which has abundant, deep yellow flowers and attractive foliage. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

BOTANICAL CLASSIFICATION: ROSA HYBRIDA.

Variety denomination: ‘POULyc004’.

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety of gardenrose plant which originated from a controlled crossing between anunnamed female parent plant and an unnamed male parent plant. The twoparents were crossed during the summer of 1991, and the resulting seedswere planted in a controlled environment in Fredensborg, Denmark. Thenew variety is named ‘POULyc004’.

The new variety may be distinguished from its pollen parent, by thefollowing combination of characteristics:

-   -   1. While the pollen parent has a free branching, low growing        growth habit, ‘POULyc004’ has a climbing growth habit.    -   2. While the pollen parent has very double flowers, ‘POULyc004’        has flowers characterized as double.

The new variety may be distinguished from its unnamed seed parent, bythe following combination of characteristics:

-   -   1. The seed parent is multiflorus with up to approximately 20        flowers per stem. ‘POULyc004’ has up to 5 flowers per stem.    -   2. While the seed parent has no fragrance, ‘POULyc004’ has a        light floral scent.

The objective of the hybridization of this rose variety was to create anew and distinct variety for garden use with unique qualities, such as:

-   -   1. Uniform and abundant yellow flowers;    -   2. Vigorous, but compact growth when propagated both as a budded        rose and on its own roots;    -   3. Disease resistance.    -   4. Improved flowering habit. Since the variety is less apically        dominant, flowers are produced from lower branches to the top.

This combination of qualities is not present in previously availablecommercial cultivars of this type, known to the inventor, anddistinguish ‘POULyc004’ from all other varieties of which we are aware.

As part of their rose development program, L. Pernille Olesen and MogensN. Olesen germinated the seeds from the aforementioned hybridizationduring winter 1991 and conducted evaluations on the resulting seedlingsin a controlled environment in Fredensborg, Denmark.

‘POULyc004’ was selected in the spring 1992 by the inventors as a singleplant from the progeny of the aforementioned hybridization.

Asexual reproduction of ‘POULyc004’ by traditional budding and rootedcuttings was first done by L. Pernille and Mogens N. Olesen in theirnursery in Fredensborg, Denmark in June, 1992. This initial and othersubsequent asexual propagations conducted in controlled environmentshave demonstrated that the characteristics of ‘POULyc004’ are true totype and are transmitted from one generation to the next.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying color illustration shows as true as is reasonablypossible to obtain in color photographs of this type, the typicalcharacteristics of the buds, flowers, leaves, and stems, of ‘POULyc004’.Specifically illustrated in FIG. 1:

FIG. 1.1; Open flower, stem showing open flower, the attachment of buds,and peduncles;

FIG. 1.2; Flower bud closed, partially open bloom and open flower.

FIG. 1.3; Flower petals, detached;

FIG. 1.4; Sepals, receptacle, and pedicel;

FIG. 1.5; Mature leaves;

FIG. 1.6; Bare stems.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘POULyc004’, as observed in its growthin a field nursery in Jackson County, Oreg. Observed plants are 3 yearsof age. Color references are made using The Royal Horticultural Society(London, England) Colour Chart, 1995, except where common terms of colorare used.

For a comparison, several physical characteristics of the rose variety‘POULhult’, a rose variety from the same inventors described andillustrated in U.S. Plant patent application Ser. No. 10/267,547 anddated Oct. 8, 2002, are compared to ‘POULyc004’ in Chart 1.

CHART 1 ‘POULyc004’ ‘POULhult’ Flower Diameter 30-35 mm. 55 to 60 mm.Color of Yellow Group 13A. Yellow Group 11D. outermost petals afteropening inner side. Petal Size 16 mm (l) × 10 mm (w). 27 mm (l) × 28 mm(w).

-   Parents:    -   -   Seed parent.—Unnamed plant.        -   Pollen parent.—Unnamed plant.

FLOWER AND FLOWER BUD

-   Blooming habit: Continuous.-   Flower bud:    -   -   Size.—Upon opening, 11 mm in length from base of receptacle            to end of bud. Bud diameter is 6 mm.        -   Bud form.—Pointed ovoid.        -   Bud color.—As sepals unfold, petals are Yellow-Orange Group            15B to 15C. Yellow-Orange Group 15B to 15C. at ¼ opening.            Sepals: Upper surface: Color: Yellow-Green Group 146C with            intonations of Greyed-Purple Group 183A. Lower surface:            Color: Yellow-Green Group 144A with intonations of            Greyed-Purple Group 183A. Shape: Subulate. Margins: Margins            have weak foliaceous appendages on three of the five sepals.            Surfaces of sepals moderately pubescent. Stipitate glands            observed at the margins and the apex of sepals in sparse            quantity. Anthocyanin: Weak. Greyed-Purple Group 183A. Size:            20 mm long by 4 mm wide.        -   Receptacle.—Surface texture: Smooth and glaucous. Shape:            Urn-shaped. Size: 50 mm (h)×5 mm (w). Color: Yellow-Green            Group 144A.        -   Peduncle.—Length: Normally 10 to 15 cm from base of the            branch to flowering portion. Diameter: 2.5 mm. Color: Yellow            Green 144A.        -   Pedicel.—Surface: Smooth, slightly glabrous. Length: 23 to            25 mm average length. Diameter is normally 2 mm.        -   Borne.—Multiples of 5 buds per flowering stem. Occasionally            single.        -   Anthocyanin.—Color: Greyed-Red Group 183A.-   Flower bloom:    -   -   Fragrance.—Light floral.        -   Duration.—The blooms have a duration on the plant of            approximately 7 to 10 days.        -   Size.—Average flower diameter is 30-35 mm when open.        -   Form.—Rosette with outermost petals slightly overlapping.            Shape of flower when viewed from the side: Upon opening,            upper part: Flattened convex. Upon opening, lower part:            Flat. Open flower, upper part: Flattened convex. Open            flower, lower part: Flat.        -   Petalage.—Semi-double. Average range: 25-30 petals under            normal conditions with 3 petaloids.-   Color:    -   -   Upon opening, petals.—Outermost petals: Outer side: Yellow            Group 13B. Occasionally, outer surface of outer petals            exhibit splotches of White Group 155A. Inner side: Yellow            Group 13A. Innermost petals: Outer side: Yellow Group 13B.            Inner side: Yellow Group 13A.        -   Upon opening, basal petal spots.—No distinctive coloration            at petal base observed.        -   After opening, petals.—Outermost petals: Outer side: Yellow            Group 13B. Occasionally, outer surface of outer petals            exhibit splotches of White Group 155A. Inner side: Yellow            Group 13A. Innermost petals: Outer side: Yellow Group 13B.            Inner side: Yellow Group 13A.        -   After opening, basal petal spots.—No distinctive coloration            at petal base observed.-   General tonality: On open flower Yellow Group 13A to 13B. No change    in the general tonality at the end of the 10^(th) day. Afterwards,    general tonality is Yellow Group 12C.-   Petals:    -   -   Petal reflex.—Petals reflexed slightly.        -   Margin.—Entire with point in center of margin.        -   Shape.—Apex: Pointed. Base: Acute.        -   Size.—16 mm (l)×10-15 mm (w).        -   Texture.—Smooth.        -   Thickness.—Thin.        -   Arrangement.—Not formal.-   Petaloids:    -   -   Quantity.—3-5.        -   Size.—12 mm (l)×7 mm (w).        -   Color.—Upper surface: Yellow Group 13A. Lower surface:            Yellow Group 13A.-   Reproductive organs:    -   -   Pistils.—Length: 5-6 mm long. Quantity: 35 (actual count).        -   Pollen.—None observed.        -   Anthers.—Size: 1.5 mm long. Color: Yellow-Orange Group 18A.            Quantity: 48 (actual count).        -   Filaments.—Color: Orange Group 17B. Length: 5-6 mm.        -   Stigmas.—Level in location to anthers. Color: Yellow-Green            Group 145D.        -   Styles.—Color: Yellow-Green Group 145D. Other intonations:            None.        -   Hips.—None observed in the field nursery in Jackson County            Oreg.

PLANT

-   -   -   Plant growth.—Vigorous climbing habit with weak apical            dominance in flowering characteristics.

-   Stems:    -   -   Color.—Young wood: Yellow-Green Group 144A to 144B. Older            wood: Yellow-Green Group 144A to 144B.        -   Surface texture.—Young wood: Smooth. Older wood: Rough.        -   Thorns.—Incidence: 4 thorns per 10 cm of stem. Size: Average            length: 4 mm. Juvenile Thorn Color: Greyed-Purple Group 183A            to 183B. Mature Thorn Color: Greyed-Purple Group 183B.            Shape: Linear to concave.        -   Anthocyanin.—None observed.

-   Plant foliage: Normal number of leaflets on normal leaves in middle    of the stem: 5 leaflets.    -   -   Compound leaf size.—12-30 mm (l)×7-20 mm (w).        -   Color.—Mature foliage: Upper leaf surface: Yellow-Green            Group 147A. Lower leaf surface: Yellow-Green Group 146A to            146B. Juvenile foliage: Upper leaf surface: Yellow-Green            Group 147A. Lower leaf surface: Yellow-Green Group 146A to            146B. Anthocyanin: None observed.

-   Plant leaves and leaflets:    -   -   Stipules.—Upper surface: Pubescent. Length: 18 mm. Color:            Yellow-Green Group 146A. Shape: Linear with outward            extending apecies. Margins: Finely serrated with stipitate            glands.        -   Petiole.—Length: 15 to 30 mm. Color: Yellow-Green Group            146C. Diameter: 1 mm.        -   Rachis.—Color: Yellow-Green Group 146C. Length: 40 mm.            Texture: Undersides have small prickles.        -   Leaflet.—Edge: Finely serrated. Shape: Generally ovate to            rounded with cuspidate apex and rounded base. Texture:            Smooth. Arrangement: Odd pinnate. Venation: Reticulate.            Glossiness: Moderate. Size: 37 mm (l)×22 mm (w).

-   Disease resistance: Above average resistance to mildew, rust, black    spot, and Botrytis under normal growing conditions in Jackson    County, Oreg.

-   Cold hardiness: The variety ‘POULyc004’ has been found to be cold    tolerant to USDA Cold Hardiness Zone 6.

1. A new and distinct variety of rose plant of the climbing rose class,substantially as herein illustrated and described as a distinct andnovel rose variety due to its abundant deep yellow flowers, diseaseresistance, and extended period of bloom.